<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<style>
input{
	width: 300px;
	padding: 0 50px;
	box-sizing: border-box;
}

</style>
</head>
<body>
<input type="text" />
</body>
</html>
